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Timeline of electromagnetism and classical optics

   * 130 - Claudius Ptolemy tabulates angles of refraction for several
     media,
   * 1269 - Plerin de Maricourt describes magnetic poles and remarks on the
     nonexistence of isolated magnetic poles,
   * 1305 - Dietrich von Freiberg uses crystalline spheres and flasks filled
     with water to study the reflection and refraction in raindrops that
     leads to primary and secondary rainbows,
   * 1604 - Johannes Kepler describes how the eye focuses light,
   * 1604 - Johann Kepler specifies the laws of the rectilinear propagation
     of the light,
   * 1611 - Marko Dominis discusses the rainbow in De Radiis Visus et Lucis,
   * 1611 - Johannes Kepler discovers total internal reflection, a small
     angle refraction law, and thin lens optics,
   * 1621 - Willebrord van Roijen Snell states his Snell's law of
     refraction,
   * 1630 - Cabaeus found that there are two types of electric charges
   * 1637 - Ren Descartes quantitatively derives the angles at which
     primary and secondary rainbows are seen with respect to the angle of
     the Sun's elevation,
   * 1657 - Pierre de Fermat introduces the principle of least time into
     optics,
   * 1665 - Francesco Maria Grimaldi highlights the phenomena of diffraction
   * 1673 - Ignace Pardies provides a wave explanation for refraction of
     light
   * 1675 - Isaac Newton delivers his theory of light
   * 1676 - Olaus Roemer measures the speed of light by observing Jupiter's
     moons
   * 1678 - Christian Huygens states his principle of wavefront sources,
   * 1704 - Isaac Newton publishes Opticks, a corpuscular theory of light
     and colour,
   * 1728 - James Bradley discovers the aberration of starlight and uses it
     to determine that the speed of light is about 283,000 km/s,
   * 1746 - Leonhard Euler develops the wave theory of light refraction and
     dispersion
   * 1752 - Benjamin Franklin shows that lightning is electricity,
   * 1767 - Joseph Priestley proposes an electrical inverse-square law,
   * 1785 - Charles Coulomb introduces the inverse-square law of
     electrostatics,
   * 1786 - Luigi Galvani discovers "animal electricity and postulates that
     animal bodies are storehouses of electricity,
   * 1800 - William Herschel discovers infrared radiation from the Sun
   * 1801 - Johann Ritter discovers ultraviolet radiation from the Sun,
   * 1801 - Thomas Young demonstrates the wave nature of light and the
     principle of interference,
   * 1808 - Etienne-Louis Malus discovers polarization by reflection,
   * 1809 - Etienne-Louis Malus publishes the law of Malus which predicts
     the light intensity transmitted by two polarizing sheets,
   * 1811 - Franois Jean Dominique Arago discovers that some quartz
     crystals will continuously rotate the electric vector of light,
   * 1816 - David Brewster discovers stress birefringence,
   * 1818 - Simeon Poisson predicts the Poisson-Arago bright spot at the
     center of the shadow of a circular opaque obstacle,
   * 1818 - Franois Jean Dominique Arago verifies the existence of the
     Poisson-Arago bright spot,
   * 1820 - Hans Christian rsted notices that a current in a wire can
     deflect a compass needle,
   * 1825 - Augustin Fresnel phenomenologically explains optical activity by
     introducing circular birefringence,
   * 1826 - Georg Simon Ohm states his Ohm's law of electrical resistance,
   * 1831 - Michael Faraday states his law of induction,
   * 1833 - Heinrich Lenz states that an induced current in a closed
     conducting loop will appear in such a direction that it opposes the
     change that produced it (Lenz's law),
   * 1845 - Michael Faraday discovers that light propagation in a material
     can be influenced by external magnetic fields,
   * 1849 - Armand Fizeau and Jean-Bernard Foucault measure the speed of
     light to be about 298,000 km/s,
   * 1852 - George Gabriel Stokes defines the Stokes parameters of
     polarization,
   * 1864 - James Clerk Maxwell publishes his papers on a dynamical theory
     of the electromagnetic field,
   * 1871 - Lord Rayleigh discusses the blue sky law and sunsets (Rayleigh
     scattering),
   * 1873 - James Clerk Maxwell states that light is an electromagnetic
     phenomenon,
   * 1875 - John Kerr discovers the electrically induced birefringence of
     some liquids,
   * 1879 - Jo?ef Stefan discovers the Stefan-Boltzmann radiation law of a
     blackbody and uses it to calculate the first sensible value of the
     temperature of a Sun's surface to be 5700 K,
   * 1888 - Heinrich Rudolf Hertz discovers radio waves,
   * 1895 - Wilhelm Conrad Rntgen discovers X-rays,
   * 1896 - Arnold Sommerfeld solves the half-plane diffraction problem,
   * 1956 - R. Hanbury-Brown and R.Q. Twiss complete the correlation
     interferometer.
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